Jabra (GN Netcom) GN 2110 ST

The GN Netcom GN 2110 ST Monaural Headset is lightweight, very durable, and extremely comfortable, even if worn all day long. TheGN 2110 ST features a click-stop headband which provides a customized fit and pillow-soft ear cushions rest gently over the ear.
GN2110 , Monaural over-the-head, Soundtube clarity headset.
GN1200 Smart Cord not included eliminates the need for multiple cords for connecting to different phone systems. It connects between telephones with built-in modular headset jacks and GN Netcom brand headsets. You choose your phone type through the eight-position select switch on the Smart Cord.